·         Wave Properties

·         Inquiry question:

·         Students:

·         conduct a practical investigation involving the creation of mechanical waves in a variety of situations in order to explain: ·         the role of the medium in the propagation of mechanical waves

·         the transfer of energy involved in the propagation of mechanical waves

·         conduct practical investigations to explain and analyse the differences between: ·

·         mechanical and electromagnetic waves

·         construct and/or interpret graphs of displacement as a function of time and as a function of position of transverse and longitudinal waves, and relate the features of those graphs to the following wave characteristics:

·         velocity

·         frequency

·         period

·         wavelength

·         displacement and amplitude

·         solve problems and/or make predictions by modelling and applying the following relationships to a variety of situations:  ·         v=

·         f=1T

·

·         Wave behaviour

·         Inquiry question: How do waves behave?

·         Students:

·         explain the behaviour of waves in a variety of situations by investigating the phenomena of:

·         reflection

·         refraction

·         diffraction

·         wave superposition

·         conduct an investigation to distinguish between progressive and standing waves

·         conduct an investigation to explore resonance in mechanical systems and the relationships between: ·         driving frequency

·         natural frequency of the oscillating system

·         amplitude of motion

·         transfer/transformation of energy within the system

Sound waves

·         Inquiry question: What evidence suggests that sound is a mechanical wave?

·         Students:

·         conduct a practical investigation to relate the pitch and loudness of a sound to its wave characteristics

·         model the behaviour of sound in air as a longitudinal wave

·         relate the displacement of air molecules to variations in pressure (ACSPH070)

·         investigate quantitatively the relationship between distance and intensity of sound

·         conduct investigations to analyse the reflection, diffraction, resonance and superposition of sound waves(ACSPH071)

·         investigate and model the behaviour of standing waves on strings and/or in pipes to relate quantitatively the fundamental and harmonic frequencies of the waves that are produced to the physical characteristics (eg length, mass, tension, wave velocity) of the medium  (ACSPH072)  ·         analyse qualitatively and quantitatively the relationships of the wave nature of sound to explain: ·         beats fbeat=|f2−f1|

·         the Doppler effect f′=f(vwave+vobserver)(vwave−vsource)

·         Ray model of light

·         Inquiry question:           What properties can be demonstrated when using the ray model of light?

·         Students:

·         conduct a practical investigation to analyse the formation of images in mirrors and lenses via reflection and refraction using the ray model of light

·         conduct investigations to examine qualitatively and quantitatively the refraction and total internal reflection of light (ACSPH075,

·         predict quantitatively, using Snell’s Law, the refraction and total internal reflection of light in a variety of situations ·         conduct a practical investigation to demonstrate and explain the phenomenon of the dispersion of light ·         conduct an investigation to demonstrate the relationship between inverse square law, the intensity of light and the transfer of energy

·         solve problems or make quantitative predictions in a variety of situations by applying the following relationships to:  ·         nx=cvx – for the refractive index of medium xvx is the speed of light in the medium

·         n1sinθ1=n2sinθ2 (Snell’s Law)

·         sinθc=n2n1

·         I1r21=I2r22 – to compare the intensity of light at two points, r1 and r2

·         Thermodynamics

·         Inquiry question: How are temperature, thermal energy and particle motion related?

·         Students:

·         explain the relationship between the temperature of an object and the kinetic energy of the particles within it

·         explain the concept of thermal equilibrium

·         analyse the relationship between the change in temperature of an object, and its specific heat capacity through the equation Q=mcΔT

·         investigate energy transfer by the process of:

·         conduction

·         convection

·         model and predict quantitatively energy transfer from hot objects by the process of thermal conductivity ·         apply the following relationships to solve problems and make quantitative predictions in a variety of situations:  